CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (18,731,000)	$ (19,433,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,391,000	3,371,000
Stock-based compensation	564,000	214,000
Deferred income taxes		10,078,000
Gift card breakage	(112,000)	(120,000)
Amortization of deferred income for co-branded credit card	(123,000)	(275,000)
Amortization of deferred rent	(835,000)	(681,000)
Amortization of deferred financing costs	108,000
Change in assets and liabilities:
Decrease (increase) in receivables and income tax receivables	(254,000)	26,000
Decrease (increase) in inventories	543,000	(182,000)
Decrease (increase) in prepaid expenses and other current assets	(475,000)	218,000
Increase (decrease) in accounts payable	1,368,000	(5,726,000)
Increase (decrease) in accrued liabilities, accrued compensation and other liabilities	(1,718,000)	1,426,000
Net cash used in operating activities	(16,274,000)	(11,084,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of marketable securities		(2,000,000)
Maturities of marketable securities		5,013,000
Certificates of deposit-restricted		750,000
Purchase of equipment and leasehold improvements	(4,379,000)	(3,570,000)
Net cash provided by (used in) investing activities	(4,379,000)	193,000
CASH FLOWS FROM FINANCING ACTIVITIES:
Book overdraft	1,550,000
Proceeds from the issuance of common stock	16,331,000	13,419,000
Payment of issuance costs	(1,075,000)	(1,804,000)
Payments of deferred financing costs		(231,000)
Net cash provided by financing activities	16,806,000	11,384,000
Net increase (decrease) in cash and equivalents	(3,847,000)	493,000
Cash and equivalents, at beginning of period	4,513,000	12,360,000
Cash and equivalents, at end of period	666,000	12,853,000
Supplemental disclosure of cash flow information:
Income taxes paid	125,000	115,000
Interest paid	125,000
Supplemental disclosure of non-cash investing and financing activities:
Accrued fixed asset additions	822,000	321,000
Accrued issuance costs	166,000	148,000
Accrued deferred financing costs		136,000
Prepaid stock-based compensation	$ 57,000	$ 24,000